1/* $KAME: lexer.l,v 1.7 2000/11/08 02:40:53 itojun Exp $ */ 2 3/*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34%{ 35#include <sys/param.h> 36#include <sys/ioctl.h> 37#include <sys/socket.h> 38#include <sys/queue.h> 39 40#include <string.h> 41 42#include <net/if.h> 43#include <netinet/in.h> 44#include <netinet/in_var.h> 45#include <netinet/icmp6.h> 46 47#include <arpa/inet.h> 48 49#include "y.tab.h" 50 51int lineno = 1; 52 53#define LINEBUF_SIZE 1000 54char linebuf[LINEBUF_SIZE]; 55 56int parse(FILE **); 57void yyerror(const char *); 58int yylex(void); 59%} 60 61%option noyywrap 62%option nounput 63 64/* common section */ 65nl \n 66ws [ \t]+ 67digit [0-9] 68letter [0-9A-Za-z] 69hexdigit [0-9A-Fa-f] 70special [()+\|\?\*,] 71dot \. 72hyphen \- 73colon \: 74slash \/ 75bcl \{ 76ecl \} 77semi \; 78usec {dot}{digit}{1,6} 79comment \#.* 80qstring \"[^"]*\" 81decstring {digit}+ 82hexpair {hexdigit}{hexdigit} 83hexstring 0[xX]{hexdigit}+ 84octetstring {octet}({dot}{octet})+ 85ipv4addr {digit}{1,3}({dot}{digit}{1,3}){0,3} 86ipv6addr {hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7} 87ipaddrmask {slash}{digit}{1,3} 88keyword {letter}{letter}+ 89name {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))* 90hostname {name}(({dot}{name})+{dot}?)? 91 92timeval {digit}{0,2} 93days d{timeval} 94hours h{timeval} 95minutes m{timeval} 96seconds s{timeval} 97 98mprefix match_prefix|match-prefix 99uprefix use_prefix|use-prefix 100 101%% 102 /* rrenumd keywords */ 103debug { 104 return(DEBUG_CMD); 105 } 106dest { 107 return(DEST_CMD); 108 } 109retry { 110 return(RETRY_CMD); 111 } 112seqnum { 113 return(SEQNUM_CMD); 114 } 115add { 116 yylval.num = RPM_PCO_ADD; 117 return(ADD); 118 } 119change { 120 yylval.num = RPM_PCO_CHANGE; 121 return(CHANGE); 122 } 123setglobal { 124 yylval.num = RPM_PCO_SETGLOBAL; 125 return(SETGLOBAL); 126 } 127{mprefix} { 128 return(MATCH_PREFIX_CMD); 129 } 130maxlen { 131 return(MAXLEN_CMD); 132 } 133minlen { 134 return(MINLEN_CMD); 135 } 136{uprefix} { 137 return(USE_PREFIX_CMD); 138 } 139keeplen { 140 return(KEEPLEN_CMD); 141 } 142 143vltime { 144 return(VLTIME_CMD); 145 } 146pltime { 147 return(PLTIME_CMD); 148 } 149raf_onlink { 150 return(RAF_ONLINK_CMD); 151 } 152raf_auto { 153 return(RAF_AUTO_CMD); 154 } 155rrf_decrvalid { 156 return(RAF_DECRVALID_CMD); 157 } 158rrf_decrprefd { 159 return(RAF_DECRPREFD_CMD); 160 } 161{days} { 162 yytext++; 163 yylval.num = atoi(yytext); 164 return(DAYS); 165 } 166{hours} { 167 yytext++; 168 yylval.num = atoi(yytext); 169 return(HOURS); 170 } 171{minutes} { 172 yytext++; 173 yylval.num = atoi(yytext); 174 return(MINUTES); 175 } 176{seconds} { 177 yytext++; 178 yylval.num = atoi(yytext); 179 return(SECONDS); 180 } 181infinity { 182 return(INFINITY); 183 } 184 185on { 186 yylval.num = 1; 187 return(ON); 188 } 189off { 190 yylval.num = 0; 191 return(OFF); 192 } 193 194 /* basic rules */ 195{ws} ; 196{nl} { 197 lineno++; 198 } 199{semi} { 200 return EOS; 201 } 202{bcl} { 203 return BCL; 204 } 205{ecl} { 206 return ECL; 207 } 208{qstring} { 209 yylval.cs.cp = yytext; 210 yylval.cs.len = yyleng; 211 return QSTRING; 212 } 213{decstring} { 214 yylval.cs.cp = yytext; 215 yylval.cs.len = yyleng; 216 return DECSTRING; 217 } 218{name} { 219 yylval.cs.cp = yytext; 220 yylval.cs.len = yyleng; 221 return NAME; 222 } 223{ipv4addr} { 224 memset(&yylval.addr4, 0, sizeof(struct in_addr)); 225 if (inet_pton(AF_INET, yytext, 226 &yylval.addr4) == 1) { 227 return IPV4ADDR; 228 } else { 229 return ERROR; 230 } 231 } 232{ipv6addr} { 233 memset(&yylval.addr6, 0, sizeof(struct in6_addr)); 234 if (inet_pton(AF_INET6, yytext, 235 &yylval.addr6) == 1) { 236 return IPV6ADDR; 237 } else { 238 return ERROR; 239 } 240 } 241{ipaddrmask} { 242 yytext++; 243 yylval.num = atoi(yytext); 244 return(PREFIXLEN); 245 } 246{hostname} { 247 yylval.cs.cp = yytext; 248 yylval.cs.len = yyleng; 249 return HOSTNAME; 250 } 251%% 252 253int parse(FILE **fp) 254{ 255 extern int yyparse(void); 256 257 yyin = *fp; 258 259 if (yyparse()) 260 return(-1); 261 262 return(0); 263 264} 265 266void 267yyerror(const char *s) 268{ 269 printf("%s: at %s in line %d\n", s, yytext, lineno); 270} 271